What are the reasons that anti-static shoes' sole became yellow? - NEWS RELEASE - China International Occupational Safety & Health Goods Expo

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What are the reasons that anti-static shoes' sole became yellow?

As we all know, anti-static shoes are connected with anti-static clothing. Through the contact between the sole and the ground, the human static discharge into the ground. Anti-static shoes protect the safety and health of production workers and guarantee the quality of products. If anti-static shoe sole has a yellow phenomenon, will it affect the performance of anti-static shoes?
In fact, the cause of anti-static shoes yellowing is the sole material, which is PU material. U is a polyurethane material, which is easy to be degraded after being exposed to air. As time goes on, the sole will become more and more yellow. The color depth that the sole of anti-static shoe pan yellow is different, because the habit that person wear different.
PU material is the main material used for making anti-static shoes, which has the advantages of low density, soft texture, good elasticity, comfort and portability, and is suitable for workers who need to stand for a long time. The drawback is that the sole is easy to yellow, which does not affect the anti-static performance of anti-static shoes. If the sole turns yellow, you can still use it safely.